/**
 * #      剑指 Offer 65
 * 名称   不用加减乘除做加法
 * 链接   https://leetcode-cn.com/problems/bu-yong-jia-jian-cheng-chu-zuo-jia-fa-lcof
 * 题解   [338](https://leetcode-cn.com/problems/bu-yong-jia-jian-cheng-chu-zuo-jia-fa-lcof/solution)
 * 通过率 57.9%
 * 难道   简单
 */

